William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6352727 | Bactericides An object of the present invention is to provide a bactericide (and a fungicide) that is highly safe and has strong bactericidal power even when used in low concentration, and that can be used repeatedly in a sterilizing process. The object can be achieve... | 03/05/2002 |